Sofa



FIG. 1 is a perspective view of the sofa showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a plan view thereof, taken from above; and,

FIG. 7 is a plan view thereof, taken from below.

The broken lines shown in the drawing FIGS. 1, 4, and 5 are understood to represent stitching.

The dot-dash lines shown in FIG. 7 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for the “sofa,” as shown and described. 